Digital Commons Network^™

Assessing Seasonal Changes In Body Condition For Spotted (Phoca Largha), Ringed (Pusa Hispida), And Bearded (Erignathus Barbatus) Seals, Michelle Hartwick

Master's Theses

Anthropogenic global warming is causing unprecedented changes to occur within Arctic ecosystems. As sea ice continues to decline in both thickness and extent, ice-adapted species will be particularly affected. Specifically, Arctic seals are reliant on sea ice during critical life-history stages and many of their preferred prey depend on reliable patterns in annual sea ice cover. Thus, ongoing changes will likely affect the ability of Arctic seals to carry out key life-history tasks and maintain positive energy balance. One way to assess energy reserves is through examination of body condition. For seals, this is often done by measuring overall blubber …

Motivation And Social Withdrawal In Schizophrenia: Factors Related To Passive Social Withdrawal And Active Social Avoidance, Emily Anne Peters

Master's Theses

Schizophrenia is a disabling disorder and social withdrawal in schizophrenia is related to particularly adverse outcomes. Social withdrawal may be a result of “passive” motivation (disinterest or lack of drive to engage with others) or “active” motivation (fear, hostility, or distrust of others). The purpose of this study was to better understand passive social withdrawal and active social avoidance, by exploring their relationships with social abilities and social functioning outcomes. In addition, we explored whether the EEG frontal alpha asymmetry hypothesis, which has been previously linked to shyness and sociability, might contribute to our understanding of social withdrawal motivation.

This …

A Regional Vulnerability Assessment For The Dungeness Crab (Metacarcinus Magister) To Changing Ocean Conditions: Insights From Model Projections And Empirical Experiments, Halle Berger

Master's Theses

Among global coastal regions, the Northern California Current System (N-CCS) is already experiencing effects from ocean acidification and hypoxia during the summer, primarily due to the region’s seasonal upwelling, current systems, and high productivity. Oxygen, pH, and temperature conditions are expected to become more stressful with continued fossil fuel emissions under global climate change, posing a serious threat to the region’s fisheries. N-CCS fishing communities rely heavily on the economically and culturally important Dungeness crab (Metacarcinus magister). The fishery is currently sustainably managed, but potential negative impacts from changing ocean conditions on Dungeness crab life stages and populations …

Replanting Our Roots: A Best Practices Analysis On How To Empower Arab Migrant Women And Develop Leadership Through Service Work, Linda Ereikat

Master's Theses

This research is focused on identifying the best practices and methods used by community service providers who serve Arab immigrant women, a heavily marginalized and isolated demographic. Specifically, this research seeks to answer, what are the best practices for community engagement, leadership, and empowerment in the lives of Arab migrant women in San Francisco? I examine the elements of community empowerment, engagement, leadership, and methods of providing services from the Asian Women’s Shelter, the Chinatown Community Development Center, and the Arab Resource and Organizing Center. The methods used were personal interviews with key leaders of these organizations. The Arab Resource …

Development Of A Nomogram To Predict The Maximum Contact Stress Between A Bridge I-Girder And A Support Roller, Thanin Chanmalai

Master's Theses

The incremental launching method (ILM) is one of the methods of bridge construction located in environmentally sensitive areas. During the bridge launching, there are significant contact stress issues at the contact regions between the launching system and the steel bridge girders. The Iowa River Bridge (IRB) is a case study of bridge construction that used the ILM during a steel I-girders installation. Contact stress can cause severe defects during launch, which can occur within the material where the material could be damaged.

Hertz contact theory is applied for calculating contact stress between two solid surfaces, which is initially derived from …

An Exploration Of Health Misinformation In A Facebook-Delivered Health Education Intervention, Kelsey Arroyo

Master's Theses

Background: Health misinformation is commonly shared on social media but little research has examined how misinformation is communicated and what health messages are most likely to receive misinformed responses on social media. Purpose: The purpose of this work is to explore the extent to which health misinformation was shared by participants in a private Facebook-delivered health education intervention moderated by a health counselor. Methods: We used engagement data from a randomized controlled trial of a yearlong Facebook-delivered health education intervention. We conducted a content analysis of 6,016 participant comments (including original posts and replies) to examine the nature of comments …

Fabrication, Testing And Theoretical Background Of A Quantum Dot Floating Gate Flash Non-Volatile Memory (Qdg Nvm), Nathan Butterfield

Master's Theses

No abstract provided.

Shyness X Niche Interactions Across Five Countries: A Mixed-Methods Exploratory Study, Daniell Carvalheiro

Master's Theses

No abstract provided.

Evaluation Of Engineered Thermal Refuge In Streams As A Climate Warming Mitigation Strategy For Fish Populations Experiencing Thermal Stress, Rebekah Thielman

Master's Theses

Rising summer stream temperatures threaten the habitat of cold-water fishes globally. Streams with cold groundwater seeps can provide thermal refuge, however natural groundwater discharge is often patchy throughout watersheds, impacting habitat connectivity. This research was undertaken to evaluate the potential to engineer (active pumping) thermal refuge that mimic cold groundwater seeps under a range of natural streamflow conditions and varying cold-water injection rates. Natural groundwater averaging 10 °C was pumped into the river channel behind a removable baffle, used to inhibit mixing and dispersal of the groundwater plume. A fiber-optic distributed temperature sensing cable was deployed above the streambed, downstream …

Maleic Anhydride Compatibilized Peach Waste As Filler In Polypropylene And High Density Polyethylene Biocomposites, Caralyn Wong, Stephanie Jung, Joongmin Shin, Ajay Kathuria

Master's Theses

It is estimated that roughly 103, 515 tons of peach waste is produced annually in the US. The majority of the waste is disposed of in landfills, which contributes to climate change as they release 93 million metric tons of CO₂ equivalent. Peach waste principally consists of remaining stone and seed after flesh removal. The agro-waste includes both cellulose and lignin, which can be utilized as a filler in plastic packaging to reduce carbon footprints and material cost. The objectives of this research are (1) to develop peach flour (PF)-filled biocomposites with a polyolefin matrix using maleic anhydride-g-high density …

Effect Of Unilateral Lower-Limb Amputation On Intact Limb Biomechanics: A Systematic Review, Amanda Boyd

Master's Theses

The United States will perform 30,000-40,000 amputations this year (Ertl et al., 2019). As a common medical intervention, there is extensive research regarding rehabilitation strategies and post-operative care. Many studies have explored the effects of the affected limb and prosthetic intervention yet have neglected that of the contralateral limb (De Asha et al., 2014; Jones et al., 2006; Winter & Sienko, 1988). Studies have reported an increase in secondary musculoskeletal conditions among unilateral lower-limb amputees, particularly in the intact limb, indicating the need for additional research (Gailey et al., 2008). The purpose of this systematic review was to investigate the …

The Wakefield Phenomenon: A Rhetorical Examination Of The Resurgence Of The Anti-Vaccination Movement In The 20th & 21st Century, Karen Boger

Master's Theses

This thesis explores the phenomenon of the anti-vaccination movement and existing publications documenting significant points in its resurgence in the late 20^th and early 21^st century following the now redacted publication by the former Dr. Wakefield asserting a correlation between children receiving vaccinations and children exhibiting the onset of developmental disorders, with Autism Spectrum Disorder (ASD) garnering the most public attention. With increasing numbers of parents delaying or forbidding their children from receiving vaccinations, along with the re-emergence of previously eradicated disease outbreaks and casualties, questions about the salience of Wakefield’s anti-vaccination statements arise. Investigation here is key …

Determinants Of The Carbon Footprint Of German Swimmers 2020., Ann-Marie Muehlbauer

Master's Theses

The current climate situation is placing our planet and future generations at risk, which demonstrates the urgency to combat climate change and conduct research to support this effort. Calculating the carbon footprint of active sport participation represents an important opportunity to conduct additional research. This study examined the environmental attitudes and practices of swim club members in Germany. The study had three goals: First, to calculate the total and partial carbon footprint of German swimmers; second, to understand how sport organizations induce participants to engage in pro-environmental behavior; and third, to analyze various factors associated with carbon footprint, such as …

The Use Of Low-Cost Sensors And A Convolutional Neural Network To Detect And Classify Mini-Drones, Austin Florio

Master's Theses

The increasing commercial availability of mini-drones and quadrotors has led to their greater usage, highlighting the need for detection and classification systems to ensure safe operation. Instances of drones causing serious complications since 2019 alone include shutting down airports [1-2], spying on individuals [3-4], and smuggling drugs and prohibited items across borders and into prisons [5-6]. Some regulatory measures have been taken, such as registration of drones above a specific size and the establishment of no-fly zones in sensitive areas such as airports, military bases, and national parks. While commercial systems exist to detect drones [7-8], they are expensive, unreliable, …

Additive Manufacturing Of Binary Alloy A Phase Field Approach, Manoj Ghosh

Master's Theses

A phase-field approach is pursued to study the solidification of binary alloys, and equations governing the kinetics of the phase transformation are derived. The Ginzburg Landau equation and Cahn Hilliard equation were developed for the binary alloy phasefield model, considering both free energy minimization and conservation of mass. The analytical solutions for a dilute solution alloy are derived. For the thin interface limit, the correlation between the phase-field mobility and kinetic interface coefficient is developed, neglecting the diffusivity at the solid side. For a one-dimensional steady-state condition, along with the diffuse interface, the concentration profile is established as a function …

Application Of Lignin (Modified/Unmodified ) To Cement And Observing Effects, Ashique Ur Rahman Akond

Master's Theses

Biomass of various types have been known to be important sources of energy or raw material for products in industries for centuries. Biomass have been proven to be cost effective as sources of suitable chemicals that can enhance many industrial processes. Lignin is one of many very valuable components extractable from biomass. Using lignin, modified or unmodified, can improve the sustainability of manufacturing processes. In this work, lignin was extracted from two different biomass, i.e. coffee chaff and sugarcane bagasse. Coffee chaff is the dried skins of coffee beans, the waste product from the roasting process. Sugarcane bagasse is the …

Theoretical And Experimental Study Of Choline Chloride-Carboxylic Acid Deep Eutectic Solvents And Their Hydrogen Bonds, Ramu Gautam

Master's Theses

In the field of green chemistry, deep eutectic solvents (DES) have seen extensive use and research in the last two decades. Two carboxylic acid-choline chloride DESs were studied using experimental Fourier Transform Infrared Spectroscopy (FTIR) and computational Density Functional Theory (DFT). Geometry optimization, vibrational analysis, and assignment of vibrational frequencies were performed using B3LYP with a DNP basis set. The identified experimental FTIR peaks were found to be close to the calculated vibrations. Vibrations that would be impossible to identify and characterize using experimental methods were identified using DFT simulations. The shifts in wavenumber of FTIR vibrational peaks were studied …

Does Race Matter? An Examination Of Defendant Race On Legal Decision Making In The Context Of Actuarial Risk Assessments, Riley Davis

Master's Theses

Numerous examples show how consideration of extra-legal factors, like defendant race, in legal decision-making are contributing to the overrepresentation of minorities in the legal system. Because triers of fact may be less familiar with risk assessment results presented by expert witnesses, there is a need to examine how legal decision-making is being affected by race in this context. This study aimed to examine whether individuals are in fact relying on race as a factor above empirically supported expert opinions of actual violence risk predictions. The sample consisted of 280 participants recruited from Amazon’s Mechanical Turk. To test the primary hypothesis …

State-Level Fiscal Policy And Economic Growth: Assessing Recovery From The 2007 Recession, Nathan Barron

Master's Theses

This research examines state-level fiscal policy responses to the 2007 recession, with a particular focus on the short- and long-run effectiveness of government spending at achieving economic growth. Using OLS regression models to test the impact of government spending, institutional constraints, and economic policy climates on economic growth, this research shows that government spending has a positive impact on growth that decreases into a negative impact over time. Additionally, institutional constraints are consistently found to hinder growth while the effects of policy climate are mixed.

The Megaprocessor As An Educational Tool Making The Abstract Concrete, Jonathon Beauregard Ii

Master's Theses

Computer architecture courses can be difficult for students to engage with and learn from. This is because, unlike most core courses for a computer science student, learning architecture is an abstract process. To address this, universities have implemented methods for teaching course material other than purely descriptive methods. This typically means using simulations to model some aspect of a CPU or FPGA (fieldprogrammable gate array) boards for hands-on experimentation in CPU design. However, there are issues with these tools. Simulations can only cover a few topics well, are prone to being abandoned, and introduce additional abstraction layers. FPGAs, while great …

Flexure Strength Enhancement Study In Geopolymer Mortar, Victor Bivens

Master's Theses

This thesis includes the structural enhancement study on the flexible or semi-rigid design of geopolymer mortar (GPM) to address tensile cracking commonly found at the invert of reinforced concrete pipes. Concrete pipes are often subjected to harsh sewer conditions, which eventually spread to the reinforcement skeleton through the resulting cracks and corrode it to cause premature structural failure of the pipe. Therefore, this added flexibility to the pipes’ rigid material will not only serve to limit corrosion of the steel reinforcement within the pipes but will also aid in increasing the structural stability of the pipe in its entirety. The …

The Role Of Notch In Adipose-Derived Stem Cell Adipogenesis, Mengcheng Liu

Master's Theses

Obesity is the leading cause of chronic disease and has contributed to significant health problems and complications. In order to solve this increasingly serious social problem, it is particularly important to deepen the understanding of the biological causes of obesity. Obesity is the result of an increased mass of adipose tissue after excessive caloric intake, and adipogenesis is the main strategy through which the body increases the number of adipocytes. However, due to the lack of research, the current understanding of adipogenesis is not enough to yield results in the clinic.

The regulation of adipogenesis is complex, and the role …

An Adaptive Approach To Gibbs’ Phenomenon, Jannatul Ferdous Chhoa

Master's Theses

Gibbs’ Phenomenon, an unusual behavior of functions with sharp jumps, is encountered while applying the Fourier Transform on them. The resulting reconstructions have high frequency oscillations near the jumps making the reconstructions far from being accurate. To get rid of the unwanted oscillations, we used the Lanczos sigma factor to adjust the Fourier series and we came across three cases. Out of the three, two of them failed to give us the right reconstructions because either it was removing the oscillations partially but not entirely or it was completely removing them but smoothing out the jumps a little too much. …

Exploring Experiences With Social Disorganization In Denver Communities, Tiffanie Pham

Master's Theses

Social disorganization theory states that individuals residing in disadvantaged communities are more likely to engage in delinquency and criminality due to the elements the individuals experience (Shaw & McKay, 1969). More specifically, social disorganization theory refers to the failure of the community to fully understand and acknowledge the common goals or solve any issues that the community might be experiencing (Kubrin & Weitzer, 2003). Utilizing social disorganization theory, specifically, the family disruption and poverty elements, the current literature focuses on individuals who reside in disadvantaged communities in Denver, Colorado. By using the qualitative approach, this study relied on in-depth interviews …

Examining The Effects Of Disability Services On Student Success In Higher Education, Rebecca Smith

Master's Theses

Disabled students in higher education are provided resources through reasonable accommodation, or modification of university offerings. This affords the disabled student equal opportunity to benefit from those programs, services, and facilities despite the limitations imposed by their disability. This practice is historically informed by the medical model of disability, and legal reforms such as the Americans with Disabilities Act in 1990 and the Rehabilitation Act in 1973. Most research in this area has found that reasonable accommodation is effective for “leveling the playing field” for disabled college students. Yet, some researchers argue that Universal Design, the composition of an environment …

How Human-Centered Design Affects The Workplace, Alexandra Brigham

Master's Theses

This qualitative study was designed to explore the impact a workplace environment has on employees’ well-being and productivity. The research identified the themes of flattening, perception, unflattening, and well-being from a multidisciplinary approach including art education, fine art, architecture, medicine, philosophy, and science. Flatness is a state, a behavior that occurs when human perception and consciousness are narrowed, blocking sensory information that is not pertinent to a current task. Behavior that is perpetuated by ingrained societal systems and exacerbated by personal, professional, and financial stressors that can impact the human experience. Flattened areas are addressed in this study through a …

Effects Of Perceived Poverty And Chaotic Living Conditions On Externalizing Problems In At-Risk Adolescents, Margaret Bullerjahn

Master's Theses

Adolescent externalizing behaviors have consistently been related to both poverty and family dysfunction within the psychological literature; however, the distinction between the effects of objective poverty and perceived poverty on adolescent behavior is relatively new. The current study aimed at understanding the relationship between adolescents’ perceived poverty and their engagement in externalizing behaviors. The sample for this study is 194 at-risk youths in a military-style residential program. Participants completed a series of questionnaires addressing perceptions of their family’s financial status, family chaos, the number of daily routines practiced within their home, and history of externalizing behaviors. Additionally, information about participants’ …

Creative Expression Through The Gift Of God: The Intertwining Of Creativity And Religion Of The Poor Clares In New Orleans, Louisiana, Maureen Tierney

Master's Theses

This thesis looks at the relationship of art and creativity among the Poor Clares in New Orleans, Louisiana. Through the six sisters, the project addresses the way that religion influences the art that each sister produces. While each sister has had a different experience that drew them to religious life and their artwork, they all agree that their creativity is a gift from God, and this shapes how they engage with their art.

The literature gives an understanding to the role of the artist, and how to understand the nuance in an artist’s choice, when “why” something is produced is …

Finding Identity Through Survival: The Impact Of The Hurricanes In Zora Neale Hurston’S Their Eyes Were Watching God And Jesmyn Ward’S Salvage The Bones, Crystal F. Giles

Master's Theses

This paper attempts to convey the importance of the hurricane symbol in Zora Neale Hurston’s Their Eyes Were Watching God and Jesmyn Ward’s Salvage the Bones. In both novels, the authors use the imagery of setting combined with the characterization of poor women of color in order to emphasize both the effects of environmental disaster on vulnerable communities and also the inherent power of their protagonists to overcome systemic racism combined with natural disaster. The climax of Zora Neale Hurston’s novel revolves around the deadly 1928 Okeechobee Hurricane in Florida, and the rising action of Jesmyn Ward’s novel peaks …

Mental Healthcare Providers' Personality And Its Relation To Preferences Of Client Personality, Taylor R. Rodriguez

Master's Theses

The incorporation of personality assessment and client treatment preferences in psychotherapy has implications for therapeutic processes and outcomes (e.g., treatment engagement, retention). While this research has largely focused on client characteristics and traits, mental healthcare providers seem to demonstrate differing perspectives of clients as a function of both their own and their clients’ personalities. However, no prior literature has considered providers’ pretreatment preferences of clients. The current study aimed to examine providers’ unique personality profiles and their associations with preferences for client personality characteristics utilizing a person-centered personality approach (i.e., latent profile analysis). Specifically, the study (1) examined providers’ personality …